MIC47053
500mA Micropower ULDO™
Linear Regulator
ULDO is a trademark of Micrel Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
August 2012 M9999-080712-C
General Description
The MIC47053 is a high-speed, adjustable output ultra-low
dropout, dual NMOS ULDO™ designed to power point-of-
load applications that require a low-voltage, high-current
power supply. The MIC47053 can source 500mA of output
current while only requiring a 1µF ceramic output capacitor
for stability. The MIC47053 offers 2% output voltage
accuracy over temperature, low dropout voltage (49mV @
500mA), and low ground current which makes this device
ideally suited for mobile and point-of-load applications.
The MIC47053 has an NMOS output stage offering very
low output impedance. The NMOS output stage makes for
a unique ability to respond very quickly to sudden load
changes such as that required by a microprocessor, DSP
or FPGA. The MIC47053 consumes little quiescent current
and therefore can be used for driving the core voltages of
mobile processors and post regulating a core DC/DC
converter in any processor.
The MIC47053 is available in the tiny 2mm x 2mm Thin
DFN packages with an operating junction temperature
range of 40C to 125C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
Wide input voltage range
– Input voltage: 1.0V to 3.6V
– Bias voltage: 2.3V to 5.5V
Adjustable output voltage range down to 0.4V
Low dropout voltage of 49mV at 500mA
Low shutdown current: 0.1µA typical
±2% initial output voltage accuracy over temperature
High bandwidth – very fast transient response
Stable with a 1µF ceramic output capacitor
Logic level enable input
UVLO on both supply voltages
Available in thermally-enhanced 2mm x 2mm Thin DFN
package
Junction temperature range of –40C to +125C
Applications
Point-of-load applications
PDAs, Notebooks, and Desktops
DSP, PLD, and FPGA power supply
Low-voltage post regulation
_________________________________________________________________________________________________________________________
Typical Application
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Ordering Information
Part Number Marking Code(1) Output Voltage Package(2,3) Lead Finish
MIC47053YMT 3Z5 ADJ 8 pin 2mm x 2mm Thin DFN Pb-Free
Notes:
1. Over bar symbol ( ¯ ) may not be to scale.
2. Thin DFN is a GREEN RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
3. Thin DFN package Pin 1 identifier = .
Pin Configuration
8-Pin 2mm x 2mm Thin DFN (MT)
Top View
Pin Description
Pin Number Pin Name Pin Function
1 BIAS Bias Supply. The bias supply is the power supply for the internal circuitry of the regulator.
2 GND Ground. Ground pins and exposed pad must be connected externally.
3, 4 IN Input Supply. Drain of NMOS pass transistor which is the power input voltage for regulator. The
NMOS pass transistor steps down this input voltage to create the output voltage.
5 OUT Output. Output Voltage of Regulator.
6 ADJ Adjust Input. Connect external resistor divider to program the output voltage.
7
PGOOD
Power Good Output. Open-drain output. Output is driven low when the output voltage is less than the
power good threshold of its programmed nominal output voltage. When the output goes above the
power good threshold, the open-drain output goes high-impedance, allowing it to be pulled up to a
fixed voltage.
8 EN Enable: TTL/CMOS compatible input. Logic high = enable, logic low = shutdown.
EP ePad Exposed thermal pad. Connect to the ground plane to maximize thermal performance.
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August 2012 3 M9999-080712-B
Absolute Maximum Ratings(1)
Bias Supply Voltage (VBIAS)............................. –0.3V to +6V
IN Supply Voltage (VIN) ................................... –0.3V to +4V
OUT Pin Voltage (VOUT) ....................................–0.3V to VIN
ADJ Pin Voltage (VADJ)................................... .–0.3V to +6V
Power Good (PGOOD) Voltage (VPGOOD)....... .–0.3V to +6V
Enable Voltage (VEN)....................................... –0.3V to +6V
Lead Temperature (soldering, 10s)............................ 260C
Storage Temperature (TS).........................–65C to +150C
ESD Rating(3)................................................. ESD Sensitive
Power Dissipation (4)………………………..Internally Limited
Operating Ratings(2)
IN Supply Voltage (VIN) ............ +1.0V to +3.6V (VIN < VBIAS)
Bias Voltage (VBIAS)...................................... +2.3V to +5.5V
Enable Voltage (VEN)........................................... 0V to VBIAS
Power Good Voltage (VPGOOD) ........................... .0V to VBIAS
Output Voltage Range …………….. ................ 0.4V to 3.4V
Junction Temperature (TJ) ........................ –40°C to +125°C
Ambient Temperature (TA) ........................ –40°C to +125°C
Junction Thermal Resistance
2mm x 2mm Thin DFN-8L (JA) .........................90°C/W
Electrical Characteristics (5)
VIN = VOUT + 0.5V; VBIAS = VOUT+2.1V; COUT =1µF; IOUT = 100µA; TJ = 25°C, bold values indicate –40°C TJ +125°C, unless noted.
Parameter Condition Min. Typ. Max. Units
Input Supply
Input Voltage Range (VIN) 1.0 3.6 V
VIN UVLO Threshold(6) V
IN Rising 0.7 0.81 1.0 V
VIN UVLO Hysteresis 25 mV
Ground Current in Shutdown (IGND) VEN = 0V (Regulator Shutdown) 0.1 1.0 A
Ground Current (IGND) IOUT = 500mA; VIN = VOUT + 0.5V 6 15 A
Bias Supply
BIAS Input Voltage (VBIAS) 2.3 5.5 V
VBIAS UVLO Threshold(6) V
BIAS Rising 1.7 2.0 2.3 V
VBIAS UVLO Hysteresis 70 mV
Dropout Voltage (VBIAS - VOUT) IOUT = 100mA
IOUT = 500mA 1.3
1.4
2.1 V
VBIAS Supply Current (IBIAS) IOUT = 500mA; VBIAS = VOUT + 2.1V 330 500 A
VBIAS Supply Current in Shutdown (IBIAS) VEN = 0V (Regulator Shutdown) 0.1 1.0 A
Output Voltage
Dropout Voltage (VIN - VOUT) IOUT = 100mA
IOUT = 500mA 12
49
50
120 mV
Output Voltage Accuracy IOUT = 100µA 2.0 +2.0 %
VBIAS Line Regulation VBIAS = VOUT + 2.1V to 5.5V 0.1 0.1 %/V
Micrel, Inc. MIC47053
August 2012 4 M9999-080712-B
Electrical Characteristics (5) (Continued)
VIN =VOUT + 0.5V; VBIAS =VOUT + 2.1V; COUT =1µF; IOUT=100µA; TJ=25°C, bold values indicate -40°C TJ 125°C, unless noted.
Parameter Condition Min. Typ. Max. Units
VIN Line Regulation VIN = VOUT + 0.5V to 3.6V 0.05 0.05 %/V
Load Regulation IOUT = 10mA to 500mA 0.5 0.2 0.5 %
Current Limit
Short-Circuit Current Limit VIN = 2.7V; VOUT = 0V 0.6 1.6 2.5 A
Enable Input
EN Logic Level High 1.0 V
EN Logic Level Low 0.2 V
Enable Bias Current VEN = 0V (Regulator Shutdown)
VEN = 1.0V (Regulator Enabled) 0
6
2
10 A
Turn-On Time COUT = 1µF; 90% of typical VOUT 25 500 s
Thermal Protection
Over-Temperature Shutdown TJ Rising 160 C
Over-Temperature Shutdown Hysteresis 20 C
Power Good (PGOOD)
95
PGOOD Threshold Voltage VOUT Rising
VOUT Falling
85
90.5
89.5 %
PGOOD Hysteresis 1 %
PGOOD Output Low Voltage IPG = 250A 0.02 0.1 V
PGOOD Leakage Current VPG = 5.0V 1 0.01 +1 A
Reference Voltage
Feedback Reference Voltage IOUT = 100A 0.392 0.4 0.408 V
FB Bias Current VFB = 0.8V 20 nA
Output Voltage Noise and Ripple Rejection
Output Voltage Noise f = 10Hz to 100kHz; IOUT = 500mA; COUT =1µF 111 VRMS
Ripple Rejection f = 10kHz; COUT = 1µF, IOUT = 100mA
f = 100kHz; COUT = 1µF, IOUT = 100mA 47
35 dB
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
4. The maximum allowable power dissipation of any TA (ambient temperature) is PD(MAX) = (TJ(MAX) TA ) / JA.
5. Specification for packaged product only.
6. Both VIN and VBIAS UVLO thresholds must be met for the output voltage to turn-on. If either of the two input voltages is below the UVLO thresholds,
the output is disabled.
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August 2012 5 M9999-080712-B
Typical Characteristics
Bias Dropout Voltage vs.
Output Current
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
2.00
0 100 200 300 400 500
OUTPUT CURRENT (mA)
DROPOUT VOLTAGE (V)
V
OUT
= 1.2V
V
IN
= 2.5V
V
OUT
= 2.0V
Bias Dropout Voltage vs.
Temperature
0.90
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
DROPOUT VOLTAGE (V)
V
OUT
= 1.2V
V
OUT
= 2.0V
V
IN
= 2.5V
I
OUT
= 500mA
240
260
280
300
320
340
360
380
400
420
440
3.0 3.5 4.0 4.5 5.0 5.5
BIAS CURRENT (µA)
BIAS VOLTAGE (V)
Bias Current vs.
Bias Voltage
V
IN
= 1.8V
I
OUT
= 1mA
330
332
334
336
338
340
342
344
346
348
350
0 100 200 300 400 500
BIAS CURRENT (µA)
OUTPUT CURRENT (mA)
Bias Current vs.
Output Current
V
BIAS
= 3.6V
V
IN
= 1.8V
V
OUT
= 1.2V
0
10
20
30
40
50
60
70
-40-200 20406080100120
DROPOUT VOLTAGE (mV)
TEMPERATURE (°C)
Input Droput Voltage
vs.Temperature
I
OUT
= 500mA
I
OUT
= 100mA
V
BIAS
= 3.6V
V
OUT
= 1.2V
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
01234
OUTPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Output Voltage vs.
Input Voltage
V
BIAS
= 5.0V
V
OUT
= 1.2V
I
OUT
= 500mA
0
10
20
30
40
50
60
70
0 100 200 300 400 500
DROPOUT VOLTAGE (mV)
OUTPUT CURRENT (mA)
Input Dropout Voltage vs.
Output Current
V
BIAS
= 5.0V
V
OUT
= 1.8V
240
260
280
300
320
340
360
380
400
-40-20 0 20406080100120
BIAS CURRENT (µA )
TEMPERATURE (
°
C )
Bias Current vs.
Temperature
V
BIAS
= 3.6V
V
IN
= 1.8V
V
OUT
= 1.2V
Output Voltage vs.
Bias Voltage
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
2.00
2.20
2 2.5 3 3.5 4 4.5 5 5.5
BIAS VOLTAGE (V)
OUTPUT VOLTAGE (V)
I
OUT
= 500mA
I
OUT
= 100mA
V
IN
= 2.5V
V
OUT
= 1.2V
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August 2012 6 M9999-080712-B
Typical Characteristics (Continued)
Ground Current vs.
Temperature
2.00
2.50
3.00
3.50
4.00
4.50
5.00
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
GROUND CURRENT (µA)
V
BIAS
= 3.6V
V
IN
= 1.8V
V
OUT
= 1.2V
I
OUT
= 500mA
Current Limit vs.
Input Voltage
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.522.533.54
INPUT VOLTAGE (V)
CURRENT LIMIT (A)
V
BIAS
= 5.0V
V
OUT
= 1.2V
Current Limit vs.
Temperature
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
-40-200 20406080100120
TEMPERATURE (°C)
CURRENT LIMIT (A)
V
BIAS
= 5.0V
V
IN
= 1.8V
V
OUT
= 1.2V
Output Voltage vs.
Temperature
1.14
1.16
1.18
1.20
1.22
1.24
1.26
-40-200 20406080100120
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
V
BIAS
= 3.6V
V
IN
= 1.8V
I
OUT
= 100µA
0.001
0.01
0.1
1
10
0.01 0.1 1 10 100 1000
NOISE (uV/√Hz)
FREQUENCY (kHz)
Output Noise
V
BIAS
= 3.6V
V
IN
= 2.1V
V
OUT
= 1.2V
I
OUT
= 500mA
C
OUT
= 1µF
NOISE (10Hz-100Khz) = 111µVrms
0
5
10
15
20
1.2 1.6 2.0 2.4 2.8 3.2 3.6
GROUND CURRENT (µA)
INPUT VOLTAGE (V)
Ground Current vs.
Input Voltage
V
BIAS
= 5.0V
V
OUT
= 1.2V
I
OUT
= 500mA
0
10
20
30
40
50
60
70
80
90
0.01 0.1 1 10 100 1000
PSRR (dB)
FREQUENCY(kHz)
Power Supply Ripple Rejection
(Input Voltage)
`
V
BIAS
= 4.2V
V
IN
= 1.8V ±300mV
V
OUT
= 1.2V
I
OUT
= 500mA
C
OUT
= 1µF
0
10
20
30
40
50
60
70
80
90
0.01 0.1 1 10 100 1000
PSRR(dB)
FREQUENCY(kHz)
Power Supply Rejection Ratio
(Bias Voltage)
`
V
BIAS
= 4.2V ±300mV
V
IN
= 1.8V
V
OUT
= 1.2V
I
OUT
= 500mA
C
BIAS
= 0.1µF
Output Voltage vs.
Output Current
1.190
1.192
1.194
1.196
1.198
1.200
1.202
1.204
1.206
1.208
0 100 200 300 400 500
OUTPUT CURRENT (mA)
OUPUT VOLTAGE (V)
V
BIAS
= 3.6V
V
IN
= 1.8V
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Functional Characteristics
Micrel, Inc. MIC47053
August 2012 8 M9999-080712-B
Functional Diagram
MIC47053 Adjustable Output Block Diagram
Micrel, Inc. MIC47053
August 2012 9 M9999-080712-B
Functional Description
The MIC47053 is a high-speed, ultra-low dropout,
NMOS ULDO designed to take advantage of point-of-
load applications that use supply rails to generate a low-
voltage, high-current power supply. The MIC47053 can
source 0.5A of output current while only requiring a 1µF
ceramic output capacitor for stability. The MIC47053
regulator is fully protected from damage due to fault
conditions, offering linear current limiting and thermal
shutdown.
Bias Supply Voltage
VBIAS, requiring relatively light current, provides power to
the control portion of the MIC47053. Bypassing on the
bias pin is recommended to improve performance of the
regulator during line and load transients. Small 0.1µF
ceramic capacitors from VBIAS-to-ground help reduce
high frequency noise from being injected into the control
circuitry from the bias rail and are good design practice.
Input Supply Voltage
VIN provides the supply to power the LDO. The minimum
input voltage is 1.0V. This allows conversion from low
voltage supplies to reduce the power dissipation in the
pass element.
Input Capacitor
The MIC47053 is a high-performance, high bandwidth
device. Therefore, it requires a well-bypassed input
supply for optimal performance. A 1µF capacitor is the
minimum required for stability. A 10µF ceramic capacitor
is recommended for most applications, especially if the
LDO’s headroom (VIN –VOUT) is small and/or large load
transients are present. Fast load transient and low
headroom requires a larger input filter capacitor to
ensure that the regulator does not drop out of regulation.
A 10µF will better attenuate any voltage glitches from
exceeding the maximum voltage rating of the part.
Additional high-frequency capacitors, such as small-
valued NPO dielectric-type capacitors, help filter out
high-frequency noise and are good practice in any RF-
based circuit.
X7R and X5R dielectric ceramic capacitors are
recommended because of their temperature
performance. X7R-type capacitors change capacitance
by 15% over their operating temperature range and are
the most stable type of ceramic capacitors. Z5U and
Y5V dielectric capacitors are not recommended since
they change value by as much as 50% and 60%
respectively over their operating temperature ranges. To
use a ceramic-chip capacitor with Y5V dielectric, the
value must be much higher than an X7R ceramic or a
tantalum capacitor to ensure the same capacitance
value over the operating temperature range.
Tantalum capacitors have a very stable dielectric (10%
over their operating temperature range) and can also be
used with this device.
Output Capacitor
The MIC47053 requires an output capacitor of 1µF or
greater to maintain stability. The design is optimized for
use with low-ESR ceramic chip capacitors. High-ESR
capacitors may cause high-frequency oscillation. The
output capacitor can be increased, but performance has
been optimized for a 1µF ceramic output capacitor and
does not improve significantly with larger capacitance.
(See the Typical Characteristic section for examples of
load transient response).
The output capacitor type and placement criteria are the
same as the input capacitor. See the “Input Capacitor”
subsection for a detailed description.
Minimum Load Current
The MIC47053, unlike most other regulators, does not
require a minimum load to maintain output voltage
regulation.
Adjustable Regulator Design
The MIC47053 allows programming of the output voltage
with external resistors. The R2 resistor connected
between the ADJ pin and ground should not exceed
10k, as larger values can cause instability. R1
connects between the ADJ pin and the OUT pin. The
resistor values are calculated as follows:
1
0.4V
OUT
V
R2R1
Where VOUT is the desired output voltage and 0.4V is the
internal reference voltage.
Enable/Shutdown
The MIC47053 comes with a single active-high enable
pin that allows the regulator to be disabled. Forcing the
enable pin low disables the regulator and sends it into a
“zero” off-mode-current state. In this state, current
consumed by the regulator goes nearly to zero. Forcing
the enable pin high enables the output voltage.
Micrel, Inc. MIC47053
August 2012 10 M9999-080712-B
Power Good (PGOOD)
The Power Good (PGOOD) pin is an open drain output
that goes low when the output voltage (fixed version)
drops below the PGOOD threshold voltage.
The pull-up resistor value should be large enough to
guarantee a proper “low” voltage when the PGOOD pin
pulls low. The PGOOD low voltage is typically 0.1V at
250uA current. A 10k resistor or greater is
recommended when pulling up to 3.3V bias.
If the PGOOD function is not required, the PGOOD pin
may be left unconnected.
Thermal Shutdown
The MIC47053 has an internal over-temperature
protection feature. This feature is for protection only.
The device should never be intentionally operated near
this temperature as this may reduce long term reliability.
The device will turn off when the over-temperature
threshold is exceeded. A 20°C hysteresis is built in to
allow the device to cool before turning back on.
Thermal Considerations
The MIC47053 is designed to provide 0.5A of continuous
current in a very small package. Maximum ambient
operating temperature can be calculated based upon the
output current and the voltage drop across the part.
Given that the input voltage is 1.8V, the output voltage is
1.2V and the output current is 0.5A. The actual power
dissipation of the regulator circuit can be determined
using the equation:
BIAS
I
BIAS
V
GND
I
IN
V
OUT
I
OUT
V
IN
V
D
P
Because this device is CMOS, the ground current is
insignificant for power dissipation and can be ignored for
this calculation.
0.3W0.5A1.2V1.8V
D
P
To determine the maximum ambient operating
temperature of the package, use the junction-to-ambient
thermal resistance of the device and the following basic
equation:
JA
A
T
J(MAX)
T
D(MAX)
P
TJ(MAX) = 125°C, the maximum junction temperature of
the die.
JA thermal resistance = 90°C/W.
Table 1 shows junction-to-ambient and junction to case
thermal resistance for the MIC47053 in the thin DFN.
Package
θJA
Recommended
Minimum
Footprint
θJC
8-pin 2mm x 2mm Thin DFN 90°C/W 45°C/W
Table 1. Thermal Resistance
Substituting PD for PD(max) and solving for the ambient
operating temperature will give the maximum operating
conditions for the regulator circuit. The junction-to-
ambient thermal resistance for the minimum footprint is
90°C/W. The maximum power dissipation must not be
exceeded for proper operation. For example, when
operating the MIC47053-1.2YMT at an input voltage of
1.8V and a 0.5A load with a minimum footprint layout,
the maximum ambient operating temperature TA can be
determined as follows:
C98
A
T
0.3WC/W90C125
A
T
D(MAX)
P
JA
J(MAX)
T
A
T
Therefore, a 1.2V application with 0.5A of output current
can accept an ambient operating temperature of 98°C in
a 2mm x 2mm thin DFN.
Micrel, Inc. MIC47053
August 2012 11 M9999-080712-B
Thermal Measurements
Measuring the IC’s case temperature is recommended to
ensure it is within its operating limits. Although this might
seem like a very elementary task, it is easy to get
erroneous results. The most common mistake is to use
the standard thermal couple that comes with a thermal
meter. This thermal couple wire gauge is large, typically
22 gauge, and behaves like a heatsink, resulting in a
lower case measurement.
Two methods of temperature measurement are using a
smaller thermal couple wire or an infrared thermometer.
If a thermal couple wire is used, it must be constructed
of 36 gauge wire or higher (smaller wire size) to
minimize the wire heat-sinking effect.
In addition, the thermal couple tip must be covered in
either thermal grease or thermal glue to make sure that
the thermal couple junction is making good contact with
the case of the IC. Omega brand thermal couple (5SC-
TT-K-36-36) is adequate for most applications.
Wherever possible, an infrared thermometer is
recommended. The measurement spot size of most
infrared thermometers is too large for an accurate
reading on a small form factor ICs. However, a IR
thermometer from Optris has a 1mm spot size, which
makes it a good choice for the 2mm x 2mm Thin DFN
package. An optional stand makes it easy to hold the
beam on the IC for long periods of time.
For a full discussion of heat sinking and thermal effects
of voltage regulators, refer to the “Regulator Thermals”
section of Micrel’s Designing with Low-Dropout Voltage
Regulators handbook. This information can be found on
Micrel's website at:
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
Micrel, Inc. MIC47053
August 2012 12 M9999-080712-B
Typical Application Schematic
MIC47053 Adjustable Output
MIC47053 Bill of Materials
Item Part Number Manufacturer Description Qty.
GRM21BR60J106ME19 Murata(1) Ceramic Capacitor, 10µF, 6.3V, X5R, Size 0603
C1 C1608X5R0J106MT TDK(2) Ceramic Capacitor, 10µF, 6.3V, X5R, Size 0603 1
C2 06035D104MAT2A AVX(3) Ceramic Capacitor, 0.1µF, 50V, X5R, Size 0603 1
GRM155R61A105KE15D Murata(1) Ceramic Capacitor, 1µF, 10V, X5R, Size 0603
C3 C1005X5R0J105KT TDK(2) Ceramic Capacitor, 1µF, 10V, X5R, Size 0603 1
R1 CRCW060310K0FKEYE3 Vishay Dale(4) Resistor, 10k,1/16W, 1%, Size 0603 1
R2 CRCW06034K99FKEYE3 Vishay Dale(4) Resistor, 4.99k, 1/16W, 1%, Size 0603 1
R3, R4 CRCW060320K0FKEYE3 Vishay Dale(4) Resistor, 20k, 1/16W, 1%, Size 0603 2
U1 MIC47053YMT Micrel, Inc.(5) Low Input and Output 500mA ULDO™
Adjustable Output 1
Notes:
1. Murata: www.murata.com
2. TDK: www.tdk.com
3. AVX: www.avx.com
4. Vishay: www.vishay.com
5. Micrel, Inc.: www.micrel.com
Micrel, Inc. MIC47053
August 2012 13 M9999-080712-B
PCB Layout Recommendations
Top Layer
Bottom Layer
Micrel, Inc. MIC47053
August 2012 14 M9999-080712-B
Package Information
8-Pin 2mm x 2mm Thin DFN (MT)
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com
Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This
information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry,
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